The sum sought by the government is more than twice as much as the $200 million fine that Columbia University said it would pay when it settled its clash with the White House last week.

One month after a judge ordered Mahmoud Khalil’s release from US Immigration and Customs Enforcement custody, the Palestinian student activist tells CNN’s Wolf Blitzer and Pamela Brown why he filed a $20 million claim against the Trump administration following his 104 days in detention.